Thousands of children around the world who get cancer could be saved if they had better medical care, charities say.
Around 250,000 kids get cancer each year, and 200,000 of those come from poor, developing countries, where basic medicines are not always available.
Cancer Research UK and the International Confederation of Childhood Cancer Parent Organisations, say 80% of them die unnecessarily.
They said more key cancer drugs should be made available to poor countries.
The charities said that some children with cancer could be saved with a little as £20 worth of medicine.